Model aircraft



FIG. 1 is a top, front and right perspective view showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The appearance within the unshaded openings facing the front and rear of the model aircraft forms no part of the claimed design. 

The ornamental design for a model aircraft, as shown and described. 